Melanie Pinola

Android: If you want to find the strongest signal wherever you are, locate public Wi-Fi hotspots, monitor your mobile data usage, test your data speeds, and/or find the carrier with the best coverage in your area, this app's for you. OpenSignal is great do-it-all app for everything related to your cellular and WiFi signal.

The video above shows the many useful features in OpenSignal. The Dashboard screen offers a compass which points to the nearest cell tower and actual signal readings for your voice and data signals. The Stats screen keeps tabs on your data, talk, and text usage, as well as signal strength history. And the Coverage screen offers a heat map of all nearby carriers' coverage strength, with an advanced view showing average download and upload speeds as well as reliability ratings.

All in all, it's a handy app to have if you want to improve your reception or find the best wireless carrier.